document.write( "Question 209548: two planes travel toward each other from cities that are 780 km. apart, at rates of 190 and 200 km/h. they started at the same time. in how many hours will they meet? \n" ); document.write( "
Algebra.Com's Answer #158450 by checkley77(12844)\"\" \"About 
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D=RT
\n" ); document.write( "780=190T+200T
\n" ); document.write( "780=390T
\n" ); document.write( "T=780/390
\n" ); document.write( "T=2 HOURS THEY WILL MEET.
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